The word "agent" is everywhere in legal tech in 2026. Harvey, Legora, Clio, Eve, and EvenUp have all launched agentic products. The term covers very different things, from research assistants that run a long task to systems that quietly keep every matter moving.
Clio's 2025 Legal Trends Report found that more than half of consumers have used or would consider using AI to answer a legal question, and firms are adopting AI at a rapid pace. The question for a firm is not whether to use an agent but which kind fits its work.
Last reviewed: September 2026. Features and pricing come from vendor sites and 2026 reporting. Many of these vendors do not publish pricing, so we do not state prices for them. Confirm details with each vendor. Attorneys must review AI output.
Quick answer
- Best agent inside a small or mid-sized firm's practice workspace: Relaw
- Best for large-firm research, review, and drafting: Harvey
- Best for collaborative legal work and monitoring at scale: Legora
- Best for Clio firms: Clio Work
- Best for plaintiff document work and audits: Eve
- Best for personal injury demand and claim workflows: EvenUp
- Best assistant inside Smokeball: Archie
- Best research assistant from a legal publisher: CoCounsel
What makes a good legal AI agent
- Context - it knows the matter, the client, the emails, and the calendar
- Proactive - it prepares work before you ask
- Guardrails - draft-only, confirm-first, or auto modes you control
- Grounding - sources and citations for legal claims
- Auditability - you can see what it did and why
- Integration - it works where the work lives
- Security - clear data handling and encryption
- Cost model - predictable, not a surprise consumption bill
A 2024 Stanford study cited by industry reviewers found leading legal AI tools produced incorrect or hallucinated answers on roughly 17% to 33% of queries. Guardrails and citations are not optional.
The 8 best AI agents for law firms in 2026
1. Relaw - best agent inside the firm's practice workspace
Best for: Small and mid-sized firms that want AI that knows every matter and keeps the firm moving, with control over what it does.
Relaw's AI is not a separate chatbot. It is built into the same workspace as clients, matters, documents, meetings, and billing, so it works from the real file.
What Relaw includes:
- Daily dashboard - a prepared view of what needs attention, what is waiting on others, and next steps per matter
- Email priorities with drafted replies - the agent surfaces important mail from connected Gmail or Outlook and drafts responses for review
- Meeting briefs - a prepared summary before each meeting, and AI Notetaker notes after
- Scheduled agent jobs - triggered by events such as a completed questionnaire, a matter entering a stage, an idle matter, or an upcoming meeting
- Guardrails - draft-only, confirm-first, or auto-send for content you have approved
- Quick Actions and AI Studio - one-click actions on the file, drafting, and summarization
- Source-cited updates - legal changes reference official sources rather than unsupported claims
- Word add-in - draft and revise inside Microsoft Word
Pricing: Relaw Standard from $269 per month on annual billing and Pro from $349 per month on annual billing. 14-day trial after onboarding. Published, predictable pricing.
Honest limits: Relaw is not a large-firm due diligence or bulk document review platform, and its research is embedded in matter chat and AI Studio rather than a standalone research product. Legal research accepts official government sources, so complex multi-jurisdiction research may still need a specialist tool. Relaw is not itself SOC 2 certified; its infrastructure providers are SOC 2 Type II certified. See the security page. Attorneys must review all AI output.
Why it ranks first here: Most legal agents wait for a prompt. Relaw's agent starts the day for you and follows through with guardrails, using the real file.
2. Harvey - best for large-firm research, review, and drafting
Best for: AmLaw-scale firms and corporate legal teams with complex research, review, and drafting.
Harvey offers assistants, agents, Vault for document sets, and workflow tools, and does not publish pricing. It is enterprise-oriented. It is not designed as a small-firm practice management workspace.
See the Relaw vs. Harvey comparison.
3. Legora - best for collaborative legal work at scale
Best for: Firms and legal teams that want agentic workflows, monitoring, and collaboration.
Legora has launched agent features and reportedly moved parts of its agent pricing to consumption-based models in 2026. Confirm current terms.
4. Clio Work - best for Clio firms
Best for: Firms on Clio Manage that want AI, skills, and Word assistance tied to their Clio data.
Clio's 2026 releases added agentic capabilities across Manage, Grow, Draft, and Clio Work, aimed at research, drafting, and administrative tasks.
5. Eve - best for plaintiff document work and audits
Best for: Plaintiff firms handling large document sets and case reviews.
Eve focuses on plaintiff practice with agent-style workflows. Eve does not publish pricing.
6. EvenUp - best for personal injury demand and claim workflows
Best for: Personal injury firms preparing demands and tracking claims.
EvenUp is specialized for injury claims rather than general practice.
7. Smokeball Archie - best assistant inside Smokeball
Best for: Smokeball firms that want AI on their matter data and documents.
Archie is integrated with Smokeball's document and matter workflows.
8. CoCounsel - best research assistant from a legal publisher
Best for: Firms that want research and drafting backed by a major legal content provider.
CoCounsel comes from Thomson Reuters and is oriented around research and document tasks. It is not a practice management workspace.
Comparison table
| Capability | Relaw | Harvey | Legora | Clio Work | Eve / EvenUp | CoCounsel |
|---|---|---|---|---|---|---|
| Built into practice workspace | Yes | No | No | Yes (Clio) | No | No |
| Prepares the day proactively | Yes | Limited | Limited | Limited | Limited | No |
| Email and calendar context | Yes | Limited | Limited | Partial | No | No |
| Guardrail modes | Draft, confirm, auto | Varies | Varies | Varies | Varies | Varies |
| Source-cited legal updates | Yes | Yes | Yes | Yes | Varies | Yes |
| Aimed at | Small and mid-sized firms | Large firms | Large firms | Clio firms | Plaintiff firms | Research |
| Published pricing | Yes | No | Partial | Partial | No | Partial |
What it really costs
Most legal AI agents are priced for enterprises. Harvey and Eve do not publish pricing, Legora has reportedly moved parts of its agent pricing to consumption models, and Clio Work sits on top of Clio's per-user tiers. Consumption pricing in particular makes budgeting hard.
Relaw publishes its plan pricing and includes the AI assistant, AI Notetaker, and Word add-in in the platform, with an allotment of AI credits (Pro includes four times as many). For a small or mid-sized firm, that predictability, together with an agent that already lives in your practice workspace, is a large part of the value. Ask every vendor what happens when you exceed included usage.
How to choose
- If you want AI that runs your day inside your practice workspace, shortlist Relaw
- If you are a large firm with heavy research or review, look at Harvey or Legora
- If you are a plaintiff firm, look at Eve or EvenUp
- If you are on Clio, evaluate Clio Work
Ask each vendor: What can the agent do without my approval? Where do citations come from? How is my data used and stored? What does it cost at my volume?
FAQ
What is the best AI agent for law firms in 2026?
It depends on the firm. Relaw is the best fit for small and mid-sized firms that want an agent inside their practice workspace with guardrails. Harvey and Legora are built for large firms, and Eve and EvenUp focus on plaintiff work.
What is an AI agent for a law firm?
A legal AI agent takes multi-step actions, such as reading a matter, checking email, drafting a reply, or preparing a meeting brief, often on a schedule or trigger, with human review. A chatbot answers; an agent does work.
Are AI agents safe for confidential legal work?
They can be, with guardrails, a clear data policy, and human review. Look for draft-only or confirm-first modes, citations, and encryption. Attorneys remain responsible for verifying AI output.
What guardrails does the Relaw AI agent have?
Firms choose draft-only, confirm-first, or auto-send for approved content. Email replies are drafted for review, and the agent does not send on its own unless configured.
Related Relaw guides
- Best AI Legal Tech Platforms
- Relaw vs. Harvey
- AI Notetaker Comparison
- Best Legal Practice Management Software
- Best Law Firm Workflow and Board Software
Conclusion
The best AI agent is the one that knows your files, works where you do, and lets you decide how much it does on its own. Relaw's agent starts your day, drafts for review, and follows through, with published pricing.